void SetNewProblem()
{
const unsigned int nprob = 2;
static unsigned int iprob = 0;
static int id_val_bc0=0, id_val_bc1=0, id_val_bc2=0;
if( iprob == 0 ){ // ２次元問題の設定
Cad::CCadObj2D cad_2d;
{ // 形を作る
std::vector<Com::CVector2D> vec_ary;
vec_ary.push_back( Com::CVector2D(-0.5,-0.5) );
vec_ary.push_back( Com::CVector2D( 0.5,-0.5) );
vec_ary.push_back( Com::CVector2D( 0.5, 0.5) );
vec_ary.push_back( Com::CVector2D(-0.5, 0.5) );
cad_2d.AddPolygon( vec_ary );
cad_2d.AddVertex(Cad::LOOP,1,Com::CVector2D(0.0,0.0));
}
world.Clear();
const unsigned int id_base = world.AddMesh( Msh::CMesher2D(cad_2d,0.05) );
const Fem::Field::CIDConvEAMshCad& conv = world.GetIDConverter(id_base);
unsigned int id_field_rot = world.MakeField_FieldElemDim(id_base,2,VECTOR2,VALUE,CORNER);
unsigned int id_field_deflect = world.MakeField_FieldElemDim(id_base,2,SCALAR,VALUE,CORNER);
Fem::Ls::CLinearSystem_Field ls;
LsSol::CPreconditioner_ILU prec;
ls.AddPattern_Field(id_field_deflect,world);
ls.AddPattern_Field(id_field_rot,id_field_deflect,world);
prec.SetLinearSystem(ls.m_ls);
unsigned int id_field_rot_fix0 = world.GetPartialField(id_field_rot,conv.GetIdEA_fromCad(2,Cad::EDGE));
unsigned int id_field_rot_fix1 = world.GetPartialField(id_field_rot,conv.GetIdEA_fromCad(4,Cad::EDGE));
ls.SetFixedBoundaryCondition_Field(id_field_rot_fix0,world);
ls.SetFixedBoundaryCondition_Field(id_field_rot_fix1,world);
unsigned int id_field_def_fix0 = world.GetPartialField(id_field_deflect,conv.GetIdEA_fromCad(2,Cad::EDGE));
unsigned int id_field_def_fix1 = world.GetPartialField(id_field_deflect,conv.GetIdEA_fromCad(4,Cad::EDGE));
Fem::Field::SetFieldValue_Constant(id_field_rot_fix1,1,Fem::Field::VALUE,world, -1);
ls.SetFixedBoundaryCondition_Field(id_field_def_fix0,world);
ls.SetFixedBoundaryCondition_Field(id_field_def_fix1,world);
ls.InitializeMarge();
Fem::Eqn::AddLinearSystem_DKT2D_Static(ls,world,id_field_deflect,id_field_rot);
double res = ls.FinalizeMarge();
prec.SetValue(ls.m_ls);
std::cout << "Residual : " << res << std::endl;
{
double tol = 1.0e-6;
unsigned int iter = 10000;
LsSol::Solve_CG(tol,iter,ls);
// Fem::Sol::Solve_PCG(tol,iter,ls,prec);
std::cout << iter << " " << tol << std::endl;
}
ls.UpdateValueOfField(id_field_deflect,world,VALUE);
ls.UpdateValueOfField(id_field_rot,world,VALUE);
drawer_ary.Clear();
// drawer_ary.PushBack( new View::CDrawerVector(id_field_rot,world) );
drawer_ary.PushBack( new View::CDrawerFace(id_field_deflect,false,world) );
drawer_ary.PushBack( new View::CDrawerEdge(id_field_deflect,false,world) );
drawer_ary.PushBack( new View::CDrawerEdge(id_field_deflect,true,world) );
camera.Fit( drawer_ary.GetBoundingBox(camera.GetRotMatrix3() ) );
}
else if( iprob == 1 ){
Msh::CMesher2D msh;
msh.ReadFromFile_GiDMsh("../input_file/rect_tri.msh");
world.Clear();
const unsigned int id_base = world.AddMesh( msh );
unsigned int id_field_rot = world.MakeField_FieldElemDim(id_base,2, VECTOR2,VALUE,CORNER);
unsigned int id_field_deflect = world.MakeField_FieldElemDim(id_base,2, SCALAR,VALUE,CORNER);
unsigned int id_field_rot_fix0 = world.GetPartialField(id_field_rot,3);
unsigned int id_field_rot_fix1 = world.GetPartialField(id_field_rot,4);
unsigned int id_field_def_fix0 = world.GetPartialField(id_field_deflect,3);
unsigned int id_field_def_fix1 = world.GetPartialField(id_field_deflect,4);
Fem::Field::SetFieldValue_Constant(id_field_def_fix1,0,Fem::Field::VALUE,world, -3);
Fem::Ls::CLinearSystem_Field ls;
LsSol::CPreconditioner_ILU prec;
ls.AddPattern_Field(id_field_deflect,world);
ls.AddPattern_Field(id_field_rot,id_field_deflect,world);
prec.SetLinearSystem(ls.m_ls);
ls.SetFixedBoundaryCondition_Field(id_field_rot_fix0,world);
ls.SetFixedBoundaryCondition_Field(id_field_rot_fix1,world);
ls.SetFixedBoundaryCondition_Field(id_field_def_fix0,world);
ls.SetFixedBoundaryCondition_Field(id_field_def_fix1,world);
ls.InitializeMarge();
Fem::Eqn::AddLinearSystem_DKT2D_Static(ls,world,id_field_deflect,id_field_rot);
double res = ls.FinalizeMarge();
prec.SetValue(ls.m_ls);
std::cout << "Residual : " << res << std::endl;
{
double tol = 1.0e-6;
unsigned int iter = 10000;
LsSol::Solve_CG(tol,iter,ls);
// Fem::Sol::Solve_PCG(tol,iter,ls,prec);
std::cout << iter << " " << tol << std::endl;
}
ls.UpdateValueOfField(id_field_deflect,world,VALUE);
ls.UpdateValueOfField(id_field_rot,world,VALUE);
drawer_ary.Clear();
// drawer_ary.PushBack( new View::CDrawerVector(id_field_rot,world) );
drawer_ary.PushBack( new View::CDrawerFace(id_field_deflect,false,world) );
drawer_ary.PushBack( new View::CDrawerEdge(id_field_deflect,false,world) );
drawer_ary.PushBack( new View::CDrawerEdge(id_field_deflect,true,world) );
camera.Fit( drawer_ary.GetBoundingBox(camera.GetRotMatrix3() ) );
}
iprob++;
if( iprob == nprob ) iprob=0;
}
void SetNewProblem()
{
const unsigned int nprob = 9; // 問題数
static unsigned int iprob = 0;
if( iprob == 0 )
{
Cad::CCadObj2D cad_2d;
{ // 形を作る
std::vector<Com::CVector2D> vec_ary;
vec_ary.push_back( Com::CVector2D(0.0,0.0) );
vec_ary.push_back( Com::CVector2D(5.0,0.0) );
vec_ary.push_back( Com::CVector2D(5.0,1.0) );
vec_ary.push_back( Com::CVector2D(0.0,1.0) );
cad_2d.AddPolygon( vec_ary );
}
Msh::CMesh3D_Extrude msh_3d;
msh_3d.Extrude( Msh::CMesher2D(cad_2d,0.4), 1.0, 0.4 ); // 突き出しによって3次元メッシュを作る
world.Clear();
id_base = world.AddMesh( msh_3d );
const CIDConvEAMshCad& conv = world.GetIDConverter(id_base);
solid.SetDomain_Field(id_base,world);
solid.SetYoungPoisson(250, 0.3); // ヤング率とポアソン比の設定
// solid.SetGeometricalNonLinear(); // 幾何学的非線形性を考慮する
solid.UnSetGeometricalNonLinear();
solid.SetStationary();
dt = 0.1;
solid.SetTimeIntegrationParameter(dt,0.6);
// solid.SetSaveStiffMat();
// unsigned int id_field_bc0 = solid.AddFixElemAry(7,world);
unsigned int id_field_bc1 = solid.AddFixElemAry(conv.GetIdEA_fromCad(2,Cad::EDGE,2),world);
field_value_setter = Fem::Field::CFieldValueSetter(id_field_bc1,world);
field_value_setter.SetMathExp("sin(5*sin(0.1*t))", 1,Fem::Field::VALUE, world); // bc1_fieldのy座標に単振動を追加
field_value_setter.SetMathExp("cos(5*sin(0.1*t))", 2,Fem::Field::VALUE, world); // bc1_fieldのy座標に単振動を追加
// 描画オブジェクトの登録
drawer_ary.Clear();
id_field_disp = solid.GetIdField_Disp();
drawer_ary.PushBack( new View::CDrawerFace(id_field_disp,false,world) );
drawer_ary.PushBack( new View::CDrawerEdge(id_field_disp,false,world) );
drawer_ary.PushBack( new View::CDrawerEdge(id_field_disp,true ,world) );
camera.Fit( drawer_ary.GetBoundingBox(camera.GetRotMatrix3()) );
}
else if( iprob == 1 ){
solid.UnSetStationary();
solid.UnSetGeometricalNonLinear(); // 幾何学的非線形性を考慮しない
solid.UnSetSaveStiffMat(); // 全剛性行列を保存する．
}
else if( iprob == 2 ){
solid.SetGeometricalNonLinear();
}
else if( iprob == 3 ){
const CIDConvEAMshCad& conv = world.GetIDConverter(id_base);
unsigned int id_field_bc0 = solid.AddFixElemAry(conv.GetIdEA_fromCad(4,Cad::EDGE,2),world);
solid.SetStationary();
}
else if( iprob == 4 ){
solid.UnSetStationary();
}
else if( iprob == 5 )
{
Msh::CMesher3D mesh_3d;
mesh_3d.ReadFromFile_GiDMsh("../input_file/cylinder_tet.msh");
world.Clear();
id_base = world.AddMesh( mesh_3d );
solid.SetDomain_Field(id_base,world);
solid.SetYoungPoisson(200, 0.43); // ヤング率とポアソン比の設定
solid.UnSetGeometricalNonLinear(); // 幾何学的非線形性を考慮する．
solid.UnSetStationary();
solid.UnSetSaveStiffMat();
unsigned int id_field_bc0 = solid.AddFixElemAry(3,world);
unsigned int id_field_bc1 = solid.AddFixElemAry(4,world);
field_value_setter = Fem::Field::CFieldValueSetter(id_field_bc1,world);
field_value_setter.SetMathExp("5*sin(2*t)^2", 0,Fem::Field::VALUE, world); // bc1_fieldのy座標に単振動を追加
// 描画オブジェクトの登録
drawer_ary.Clear();
id_field_disp = solid.GetIdField_Disp();
drawer_ary.PushBack( new View::CDrawerFace(id_field_disp,false,world) );
drawer_ary.PushBack( new View::CDrawerEdge(id_field_disp,false,world) );
drawer_ary.PushBack( new View::CDrawerEdge(id_field_disp,true ,world) );
camera.Fit( drawer_ary.GetBoundingBox(camera.GetRotMatrix3()) );
}
else if( iprob == 6 ){
solid.SetStationary();
}
else if( iprob == 7 ){
Msh::CMesher2D mesh_2d;
mesh_2d.ReadFromFile_GiDMsh("../input_file/rect_quad.msh");
Msh::CMesh3D_Extrude mesh_3d;
mesh_3d.Extrude(mesh_2d, 5.0, 0.5 );
world.Clear();
id_base = world.AddMesh(mesh_3d);
const CIDConvEAMshCad& conv = world.GetIDConverter(id_base);
solid.SetDomain_Field(id_base,world);
solid.SetYoungPoisson(100, 0.3); // ヤング率とポアソン比の設定
solid.UnSetSaveStiffMat();
solid.UnSetStationary();
dt = 0.1;
solid.SetTimeIntegrationParameter(dt,0.52);
// solid.SetGeometricalNonLinear(); // 幾何学的非線形性を考慮する．
solid.UnSetGeometricalNonLinear(); // 幾何学的非線形性を考慮する．
unsigned int id_field_bc0 = solid.AddFixElemAry(conv.GetIdEA_fromMshExtrude(1,1),world);
unsigned int id_field_bc1 = solid.AddFixElemAry(conv.GetIdEA_fromMshExtrude(3,2),world);
field_value_setter = Fem::Field::CFieldValueSetter(id_field_bc1,world);
field_value_setter.SetMathExp("2*sin(t)", 0,Fem::Field::VALUE, world); // bc1_fieldのy座標に単振動を追加
// 描画オブジェクトの登録
drawer_ary.Clear();
id_field_disp = solid.GetIdField_Disp();
drawer_ary.PushBack( new View::CDrawerFace(id_field_disp,false,world) );
drawer_ary.PushBack( new View::CDrawerEdge(id_field_disp,false,world) );
drawer_ary.PushBack( new View::CDrawerEdge(id_field_disp,true ,world) );
camera.Fit( drawer_ary.GetBoundingBox(camera.GetRotMatrix3()) );
}
else if( iprob == 8 ){
solid.UnSetGeometricalNonLinear(); // 幾何学的非線形性を考慮しない
solid.SetStationary();
}
iprob++;
if( iprob == nprob ){
iprob = 0;
}
}